This day I worked in the unit for a day.,I have to be a volunteer to create a city.,Cleaning on the street.,Enthusiastic guidance or something.,Finally, it was dark before going home.,A push notification appeared on the computer.,Let upgrade the win10 operating system.。 I'm a coder myself.,Naturally, I'm very curious about this thing.,And then I clicked on the upgrade.。 And then it's a pit ::>_